some graphing updates

crates/g3-cli/src/ui_writer_impl.rs

@@ -78,6 +78,10 @@ impl UiWriter for ConsoleUiWriter {
         let _ = io::stdout().flush();
     }
 
+    fn notify_sse_received(&self) {
+        // No-op for console - we don't track SSEs in console mode
+    }
+
     fn flush(&self) {
         let _ = io::stdout().flush();
     }
@@ -244,6 +248,11 @@ impl UiWriter for RetroTuiWriter {
         self.tui.output(content);
     }
 
+    fn notify_sse_received(&self) {
+        // Notify the TUI that an SSE was received
+        self.tui.sse_received();
+    }
+
     fn flush(&self) {
         // No-op for TUI since it handles its own rendering
     }